45820 ZIP Code, Cairo, OH

45820 is a ZIP code in Cairo, Ohio in Allen County. It covers 0.3 square miles of land. The closest ZIP codes are 45893, 45801 and 45807. 581 people live here in 214 households, fewer than in most Ohio ZIP codes. At about 2,097 people per square mile it has suburban density, and most homes are owner-occupied (86%). Median household income is $83,125, above the Ohio median of $71,389.

Quick facts

Key figures

MeasureValue
Residents581
Households214
Median household income$83,125
Income per person$33,722
Median age35.9
Homeowners86.4%
Median home value$114,500
Median rent$1,023
Bachelor's degree or higher20.4%
Average commute (minutes)17.9
Households with kids under 1821.5%
Moved in the past year0.5%
Below the poverty line6.9%
Broadband internet92.5%
Speak a non-English language at home5.5%

Household income

% of householdsValue
<$10K0.0%
$10–15K0.5%
$15–25K0.9%
$25–35K9.8%
$35–50K11.7%
$50–75K17.8%
$75–100K27.6%
$100–150K14.5%
$150–200K17.3%
$200K+0.0%

Age

% of all residentsValue
<109.9%
10–1911.2%
20–248.8%
25–3417.4%
35–4410.8%
45–5410.2%
55–6416.1%
65–749.6%
75+6.0%

Tenure

% of housing unitsValue
Owned, with mortgage39.8%
Owned outright38.6%
Rented11.6%
Vacant10.0%

Type of building

% of housing unitsValue
Detached house87.9%
Townhome0.0%
2–4 units3.8%
5–19 units0.0%
20+ units0.0%
Mobile / other8.4%

Businesses in 45820

4 business establishments with 46 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 45820 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 45820

Mail every home in 45820

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 45820, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 45820 in?
45820 is a Cairo, OH mailing address. By land area, 100% lies inside Cairo.
What county is 45820 in?
45820 is in Allen County.
What is the population of 45820?
About 581 people (±169), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 517.
What is the median household income in 45820?
$83,125 (±$7,136), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 45820?
EDDM2GO's stored route library does not include 45820 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 45820?
The closest, measured center to center: 45893 (4.7 mi, Vaughnsville), 45801 (4.8 mi, Lima), 45807 (4.9 mi, Gomer), 45809 (5.3 mi, Gomer), 45830 (5.4 mi, Columbus Grove) and 45808 (5.8 mi, Beaverdam).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.